1/*=============================================================================
2 Copyright (c) 2001-2014 Joel de Guzman
3 Copyright (c) 2001-2011 Hartmut Kaiser
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7=============================================================================*/
8#if !defined(BOOST_SPIRIT_X3_PLUS_MARCH_13_2007_0127PM)
9#define BOOST_SPIRIT_X3_PLUS_MARCH_13_2007_0127PM
10
11#include <boost/spirit/home/x3/core/parser.hpp>
12#include <boost/spirit/home/x3/support/traits/container_traits.hpp>
13#include <boost/spirit/home/x3/support/traits/attribute_of.hpp>
14#include <boost/spirit/home/x3/core/detail/parse_into_container.hpp>
15
16namespace boost { namespace spirit { namespace x3
17{
18 template <typename Subject>
19 struct plus : unary_parser<Subject, plus<Subject>>
20 {
21 typedef unary_parser<Subject, plus<Subject>> base_type;
22 static bool const handles_container = true;
23
24 constexpr plus(Subject const& subject)
25 : base_type(subject) {}
26
27 template <typename Iterator, typename Context
28 , typename RContext, typename Attribute>
29 bool parse(Iterator& first, Iterator const& last
30 , Context const& context, RContext& rcontext, Attribute& attr) const
31 {
32 if (!detail::parse_into_container(
33 this->subject, first, last, context, rcontext, attr))
34 return false;
35
36 while (detail::parse_into_container(
37 this->subject, first, last, context, rcontext, attr))
38 ;
39 return true;
40 }
41 };
42
43 template <typename Subject>
44 constexpr plus<typename extension::as_parser<Subject>::value_type>
45 operator+(Subject const& subject)
46 {
47 return { as_parser(subject) };
48 }
49}}}
50
51namespace boost { namespace spirit { namespace x3 { namespace traits
52{
53 template <typename Subject, typename Context>
54 struct attribute_of<x3::plus<Subject>, Context>
55 : build_container<
56 typename attribute_of<Subject, Context>::type> {};
57}}}}
58
59#endif
60

source code of boost/libs/spirit/include/boost/spirit/home/x3/operator/plus.hpp